The Model AR-35 is a portable, lightweight, waterproof, fully automatic band-switching RF booster amplifier for multi-band VHF/UHF Tactical Radio equipment employing legacy, proprietary and emerging waveforms. The amplifier covers the frequency band of 30-512 MHz using six high speed auto switching filters to assure harmonic suppression and is SINCGARS, HAVE QUICK, and ECCM compatible. The amplifier includes Voltage Spike Suppression, RF sensing, T/R switching, Automatic Level Control (ALC), six automatically switched harmonic filter bands (DAMA capable), and protection against antenna mismatch and over-temperature. Protection against accidental polarity reversal is also provided. Low current on standby due to "sleep mode" greatly extends battery life in field use. The amplifier comprises a rugged submersible 2-piece aluminum case. Optional Broadband Antenna, cables and tactical vest pouch are available.